Nobroker - Not refunding the advance

I approached No Broker for finding an apartment to shift. They showed me * apartment which looked really good. They asked for Rs. **** token advance (which is quite high). Trusting No Broker, we paid Rs. **** as token advance. But, just after * week, I got a message from my company about an on-site opportunity and I had to back out from the decision of shifting to new house. I called the person in Nobroker to whom we have transferred the amount. But, they refuse to refund the money back to us.